CN213590123U

CN213590123U - Desulfurizing tower

Info

Publication number: CN213590123U
Application number: CN202022137186.9U
Authority: CN
Inventors: 段振; 张文博
Original assignee: China Shipbuilding Power Engineering Institute Co Ltd
Current assignee: China Shipbuilding Power Engineering Institute Co Ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-07-02
Anticipated expiration: 2030-09-25

Abstract

The utility model discloses a desulfurizing tower belongs to boats and ships tail gas desulfurization technical field. The desulfurizing tower comprises a tower body and an air inlet pipe which is communicated with the tower body; the spraying system is arranged in the tower body and is used for spraying a spraying liquid to desulfurize the flue gas; the wind cap assembly is arranged in the tower body and covers the pipe orifice of the air inlet pipe, a gap exists between the wind cap assembly and the air inlet pipe, and the wind cap assembly is configured to shield the pipe orifice; and the liquid guide assembly is arranged between the first spraying system and the second spraying system, is communicated with the outside of the tower body and is used for guiding the spraying liquid sprayed by the second spraying system to the outside. This desulfurizing tower can avoid spraying liquid and get into the flue gas pipeline, has improved the safety in utilization of system.

Description

Desulfurizing tower

Technical Field

The utility model relates to a boats and ships tail gas desulfurization technical field especially relates to a desulfurizing tower.

Background

At present, the structural arrangement scheme of the ship tail gas desulfurization tower is mainly a straight-through tower, also called an I-shaped tower, smoke enters the tower from the bottom of the tower body, flows out from a smoke outlet at the top of the tower body after sequentially passing through a first spraying system (prewashing) and a second spraying system (main washing), and washing liquid flows out from a liquid outlet at the bottom of the tower body, so that the smoke desulfurization process is realized.

The straight-through tower has smaller overall size due to no flue gas bypass, but has the risk that the cleaning solution is filled into a flue gas pipeline to damage a ship main engine: 1. spraying the spraying liquid into the flue gas pipe directly; 2. when the desulfurizing tower operates (the spraying layer is opened), a certain liquid level is accumulated at the bottom of the tower, and if the liquid level is higher than the flue gas inlet pipe opening, the spraying liquid can be poured into the flue gas pipe.

Therefore, there is a need for a desulfurization tower that solves the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a desulfurizing tower can avoid spraying liquid and get into the flue gas pipeline, has improved the safety in utilization of system.

To achieve the purpose, the utility model adopts the following technical proposal:

a desulfurizing tower, includes the tower body, the desulfurizing tower still includes:

the air inlet pipe is communicated with the tower body;

the spraying system is arranged in the tower body and is used for spraying a spraying liquid to desulfurize the flue gas;

the hood subassembly is located in the tower body, covers and locates the mouth of pipe of intake pipe, the hood subassembly with there is the clearance between the intake pipe, the hood subassembly is configured to right the mouth of pipe shelters from.

Optionally, the hood subassembly includes fixed connection's first hood and second hood, first hood lid is located the mouth of pipe of intake pipe, first hood with there is the clearance just between the mouth of pipe be equipped with on the first hood with the blow vent of intake pipe intercommunication, second hood lid is located vent department and with there is the clearance between the blow vent.

Optionally, the hood assembly further includes a second connection portion and a third connection portion, the second connection portion is fixedly connected with both the air inlet pipe and the first hood, the number of the second connection portions is multiple, and the second connection portions are arranged at equal intervals along the circumferential direction of the air inlet pipe;

the third connecting portion with first hood with the equal fixed connection of second hood, the third connecting portion are equipped with a plurality ofly, and are a plurality of the third connecting portion are followed the equidistant setting of circumference of second hood.

Optionally, the first hood and the second hood are both conical structures.

Optionally, the spray system comprises:

the first spraying system is arranged in the tower body and is used for spraying liquid to pre-desulfurize the flue gas;

and the second spraying system is arranged in the tower body and positioned above the first spraying system and is used for spraying liquid to perform secondary desulfurization on the flue gas.

Optionally, the desulfurizing tower further comprises a liquid guiding assembly, the liquid guiding assembly is arranged between the first spraying system and the second spraying system, and the liquid guiding assembly is communicated with the outside of the tower body and used for receiving the spraying liquid sprayed by the second spraying system and guiding the spraying liquid to the outside.

Optionally, the liquid guiding assembly includes a liquid guiding groove and a liquid guiding pipe communicated with the bottom of the liquid guiding groove, the liquid guiding groove is fixed on the inner wall of the tower body and used for receiving the spraying liquid sprayed by the second spraying system, and the liquid guiding pipe penetrates through the tower body and is communicated with the outside.

Optionally, the liquid guide groove comprises a flow guide part, a first connecting part and a liquid accumulating part, the flow guide part is fixed on the inner wall of the tower body, the first connecting part is fixedly connected with the flow guide part and the liquid accumulating part, and the liquid accumulating part is communicated with the liquid guide pipe.

Optionally, the liquid accumulation part is in an eccentric conical shape, and the lowest part of the liquid accumulation part is communicated with the liquid guide pipe.

Optionally, the cross-sectional area of the deflector gradually increases in the flow direction of the flue gas.

The utility model has the advantages that:

the utility model provides a desulfurizing tower, there is the clearance between mouth of pipe and hood subassembly and the intake pipe through locating the intake pipe with hood subassembly lid, when spraying system opened, the flue gas can get into the tower body through the clearance between hood subassembly and the intake pipe and realize the desulfurization, and the hood subassembly can shelter from the mouth of pipe of intake pipe simultaneously, has prevented that the spray liquid from falling into in the intake pipe, has improved the security that the desulfurizing tower used.

Drawings

FIG. 1 is a schematic view of the overall structure of a desulfurizing tower according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the connection between the hood assembly and the intake pipe of the desulfurization tower according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a liquid guiding assembly of a desulfurizing tower according to an embodiment of the present invention.

In the figure:

1. a tower body; 11. an air inlet; 12. an air outlet; 13. a liquid discharge pipe; 14. a manhole; 15. a tower floor;

2. an air inlet pipe; 3. a first spray system; 4. a second spray system; 5. a hood assembly; 51. a first hood; 52. a second hood; 53. a second connecting portion; 54. a third connecting portion; 6. a liquid guiding component; 61. a liquid guide groove; 611. a flow guide part; 612. a first connection portion; 613. a liquid accumulation part; 62. a catheter; 7. a demisting layer; 8. and (5) cleaning the device.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The embodiment of the utility model discloses desulfurizing tower, as shown in fig. 1-3, this desulfurizing tower includes tower body 1, intake pipe 2, spraying system and cap subassembly 5, and tower body 1 and intake pipe 2 are connected, and spraying system and cap subassembly 5 all locate in tower body 1. Specifically, the inlet pipe 2 communicates with the tower body 1 so that the flue gas flows in. The spraying system is used for spraying liquid to desulfurize the flue gas. The mouth of pipe of intake pipe 2 is located to the cap subassembly 5 lid, has the clearance between cap subassembly 5 and the intake pipe 2 to the flue gas passes through, cap subassembly 5 is configured to shelter from the mouth of pipe, avoids spraying liquid and gets into intake pipe 2. Through locating the mouth of pipe of intake pipe 2 and there is the clearance between hood subassembly 5 and the intake pipe 2 with hood subassembly 5 lid, when spraying system opened, the flue gas can get into tower body 1 through the clearance between hood subassembly 5 and the intake pipe 2 and realize the desulfurization, and hood subassembly 5 can shelter from the mouth of pipe of intake pipe 2 simultaneously, has prevented that the spray liquid from falling into intake pipe 2 in, has improved the security that the desulfurizing tower used.

Optionally, the bottom and the top of the tower 1 are provided with an air inlet 11 and an air outlet 12, respectively, for the inflow and outflow of flue gas. Further, the bottom of tower body 1 is equipped with tower bottom plate 15, and tower bottom plate 15 slope sets up, is equipped with the fluid-discharge tube 13 with outside intercommunication at the lower of tower bottom plate 15 to discharge the spray liquid in the tower body 1 fast. In this embodiment, the inclination of tower bottom plate 15 along the horizontal direction is 5 to in time discharge the hydrops in the tower body 1, can also avoid simultaneously when the system stop operation, form the hydrops in the desulfurizing tower, the hydrops is concentrated under the high temperature flue gas, and chloride ion concentration in the hydrops can sharply rise, causes serious corrosion to tower body 1. Preferably, a plurality of manholes 14 are further formed in the side wall of the tower body 1, and an included angle between each manhole 14 and the vertical direction is 5 degrees, so that people can conveniently overhaul the manhole. In other embodiments, the inclination angles of the tower bottom plate 15 and the manhole 14 can be set according to the requirement, and are not limited to this embodiment.

Optionally, the air inlet pipe 2 penetrates through the air inlet 11 and is fixedly connected with the tower bottom plate 15 of the tower body 1. In this embodiment, the inlet end of intake pipe 2 links to each other with the boats and ships host computer, gives vent to anger the end and communicates with 1 inside of tower body to carry the desulfurization in the desulfurizing tower through intake pipe 2 with boats and ships combustion exhaust, guarantee that boats and ships exhaust contains the sulphur content and accords with emission standard. In other embodiments, the air inlet pipe 2 may be connected to a corresponding device according to needs, and is not limited to this embodiment.

Optionally, the spraying system includes a first spraying system 3 and a second spraying system 4, the first spraying system 3 is disposed above the air inlet pipe 2, and the first spraying system 3 is used for spraying a spraying liquid to pre-desulfurize the flue gas. The second spraying system 4 is positioned above the first spraying system 3 and is used for spraying liquid to perform secondary desulfurization on the flue gas.

First spraying system 3 includes that the multilayer sprays the layer, and the multilayer sprays the layer and sets up along the direction of height interval of tower body 1, and every layer sprays the shower head that the layer was equipped with a plurality of horizontal intervals and sets up to the increase is to the regional desulfurization area of flue gas flow. The first spraying system 3 can cool the flue gas and primarily remove sulfur oxides and particulate matters in the flue gas.

The second spray system 4 is arranged similarly to the first spray system 3 and will not be described in detail here. The desulfurization of the flue gas can be realized through the second spraying system 4 and the first spraying system 3, so that the sulfur content of the flue gas meets the emission standard. In this embodiment, the second spraying system 4 has four spraying layers, and the first spraying system 3 has two spraying layers, in other embodiments, the number of spraying layers of the second spraying system 4 and the first spraying system 3 may be set according to the requirement and the height size of the tower body 1, which is not limited in this embodiment.

Preferably, the hood assembly 5 includes first hood 51 and second hood 52 of fixed connection, and the mouth of pipe of intake pipe 2 is located to first hood 51 lid, and there is the clearance between first hood 51 and the mouth of pipe to inside the flue gas of intake pipe 2 flows into tower body 1 through the clearance, be equipped with the blow vent with intake pipe 2 intercommunication on the first hood 51, the second hood 52 lid locate vent department and with the blow vent between have the clearance, so that the flue gas flows in. Compare in the form of individual layer hood, the utility model discloses a design of double-deck hood can reduce the loss of pressure that causes the flue gas, makes the flue gas mobility stronger to desulfurization efficiency has been improved.

Optionally, the hood assembly 5 further includes a second connecting portion 53 and a third connecting portion 54, and the second connecting portion 53 is fixedly connected to both the air inlet pipe 2 and the first hood 51, so as to fix the first hood 51. The third connecting portion 54 is fixedly connected to both the first hood 51 and the second hood 52, so as to fix the second hood 52. Further, second connecting portion 53 and third connecting portion 54 all are equipped with a plurality ofly, and a plurality of second connecting portion 53 and a plurality of third connecting portion 54 set up along the equidistant interval of intake pipe 2 and second hood 52 circumference respectively, both strengthened the connection steadiness to first hood 51 and second hood 52, can flow equalize the flue gas again simultaneously, make the flue gas distribution in the tower body 1 more even.

Preferably, the first hood 51 and the second hood 52 are both conical structures, and the conical tops of the conical structures are both arranged towards the spraying system so as to disperse the pressure of the spraying liquid on the hoods.

As a preferred technical scheme, the desulfurization tower further comprises a liquid guiding assembly 6, wherein the liquid guiding assembly 6 is arranged between the first spraying system 3 and the second spraying system 4, and the liquid guiding assembly 6 is communicated with the outside of the tower body 1 and is used for receiving the spraying liquid sprayed by the second spraying system 4 and guiding the spraying liquid to the outside, so that the accumulation of the spraying liquid in the tower body 1 is further reduced, and the risk that the spraying liquid penetrates into the air inlet pipe 2 due to too high liquid level is reduced; simultaneously can discharge spraying liquid fast, reduce the hydrops and store up and cause the corruption to tower body 1.

Preferably, the liquid guiding assembly 6 comprises a liquid guiding groove 61 and a liquid guiding pipe 62 which are communicated, the liquid guiding groove 61 is fixed on the inner wall of the tower body 1 and is used for receiving the spraying liquid sprayed by the second spraying system 4, and the liquid guiding pipe 62 penetrates through the tower body 1 and is fixed with the tower body 1 so as to transmit the spraying liquid in the liquid guiding groove 61 to the outside of the tower body 1.

Illustratively, the liquid guiding groove 61 includes a flow guiding portion 611, a first connecting portion 612 and a liquid accumulating portion 613, the flow guiding portion 611 is fixed on the inner wall of the tower body 1, the first connecting portion 612 is fixedly connected with both the flow guiding portion 611 and the liquid accumulating portion 613, and the liquid accumulating portion 613 is communicated with the liquid guiding tube 62.

Optionally, the cross-sectional area of the flow guide portion 611 gradually increases in the flow direction of the flue gas to guide the flow of the spray into the liquid trap portion 613.

First connecting portion 612 is equipped with a plurality ofly, and a plurality of first connecting portion 612 equally spaced along the circumference of water conservancy diversion portion 611 sets up, both strengthened to the water conservancy diversion portion 611 with ponding portion 613 be connected the steadiness, the flue gas of being convenient for smoothly passes through, can make the flue gas distribution in the tower body 1 more even again.

As preferred technical scheme, hydrops portion 613 is eccentric cone shape, and the lowest department of hydrops portion 613 and catheter 62 intercommunication to the realization is sprayed liquid and is discharged the tower body fast, reduces liquid and piles up, has reduced this drain subassembly 6's height simultaneously.

Preferably, for the flue gas after the desulfurization carries out the defogging, this desulfurizing tower still includes defogging layer 7, and defogging layer 7 is fixed to be located tower body 1 inner wall, and is located between second spraying system 4 and the gas outlet 12 to directly discharge tower body 1 through gas outlet 12 after the flue gas defogging.

Further, this desulfurizing tower still includes belt cleaning device 8, and belt cleaning device 8 locates inside tower body 1 for wash defogging layer 7. Optionally, the cleaning devices 8 are two and are respectively located on two sides of the defogging layer 7, so as to clean two sides of the defogging layer 7 at the same time, thereby improving the cleaning efficiency. It will be appreciated that the cleaning device 8 is turned on after the completion of the desulfurization system and is not operated simultaneously with the desulfurization of the flue gas.

The wind cap component 5, the first layer 3 that sprays, the first layer 4 that sprays and all are equipped with manhole 14 on the tower body 1 that the defogging layer 7 corresponds to monitor each region.

To sum up, the utility model provides a pair of desulfurizing tower, there is the clearance through locating the mouth of pipe of intake pipe 2 and hood subassembly 5 and intake pipe 2 with hood subassembly 5 lid, when spraying system opened, the flue gas can get into tower body 1 through the clearance between hood subassembly 5 and the intake pipe 2 and realize the desulfurization, and hood subassembly 5 can shelter from the mouth of pipe of intake pipe 2 simultaneously, has prevented that spray liquid from falling into intake pipe 2 in, has improved the security that the desulfurizing tower used.

Further, locate leading liquid subassembly 6 between first spraying system 3 and second spraying system 4, lead the outside intercommunication of liquid subassembly 6 and tower body 1 for accept the spraying liquid of second spraying system 4 spun and lead the spraying liquid to the outside, thereby reduced the storage of the inside spraying liquid of tower body 1, reduced the spraying liquid because the risk of the too high infiltration intake pipe 2 of liquid level.

Further, the structures in the tower such as the tower bottom plate 15 and the manhole 14 are designed in an inclined mode, so that accumulated liquid cannot exist in the tower body 1 when the desulfurization system stops operating, and the corrosion risk of the accumulated liquid to the tower body 1 is eliminated.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A desulfurizing tower, includes tower body (1), its characterized in that, the desulfurizing tower still includes:

the air inlet pipe (2) is communicated with the tower body (1);

the spraying system is arranged in the tower body (1) and is used for spraying liquid to desulfurize the flue gas;

the hood subassembly (5) is located in tower body (1), the lid is located the mouth of pipe of intake pipe (2), hood subassembly (5) with there is the clearance between intake pipe (2), hood subassembly (5) are configured as right the mouth of pipe shelters from.

2. The desulfurization tower of claim 1, wherein said hood assembly (5) comprises a first hood (51) and a second hood (52) which are fixedly connected, said first hood (51) is disposed over the opening of said air inlet pipe (2), said first hood (51) is spaced from said opening and said first hood (51) is provided with an air vent communicating with said air inlet pipe (2), said second hood (52) is disposed over said air vent and spaced from said air vent.

3. The desulfurization tower of claim 2, wherein said hood assembly (5) further comprises a second connecting portion (53) and a third connecting portion (54), said second connecting portion (53) being fixedly connected to both said intake pipe (2) and said first hood (51), said second connecting portion (53) being provided in plurality, said second connecting portions (53) being arranged at equal intervals in the circumferential direction of said intake pipe (2);

the third connecting portion (54) is fixedly connected with the first air cap (51) and the second air cap (52), the third connecting portion (54) is provided with a plurality of third connecting portions, and the third connecting portions (54) are arranged at equal intervals along the circumferential direction of the second air cap (52).

4. A desulfurization tower according to claim 2 or 3, characterized in that said first hood (51) and said second hood (52) are both of a tapered configuration.

5. A desulfurization tower according to any one of claims 1-3, wherein said spray system comprises:

the first spraying system (3) is arranged in the tower body (1) and is used for spraying liquid to pre-desulfurize the flue gas;

and the second spraying system (4) is arranged in the tower body (1) and positioned above the first spraying system (3) and is used for spraying liquid to perform secondary desulfurization on the flue gas.

6. The desulfurizing tower of claim 5, characterized in that, the desulfurizing tower further comprises a liquid guiding assembly (6), the liquid guiding assembly (6) is arranged between the first spraying system (3) and the second spraying system (4), and the liquid guiding assembly (6) is communicated with the outside of the tower body (1) and is used for receiving the spraying liquid sprayed by the second spraying system (4) and guiding the spraying liquid to the outside.

7. A desulfurization tower according to claim 6, characterized in that the liquid guiding assembly (6) comprises a liquid guiding groove (61) and a liquid guiding pipe (62) communicated with the bottom of the liquid guiding groove (61), the liquid guiding groove (61) is fixed on the inner wall of the tower body (1) and is used for receiving the spraying liquid sprayed by the second spraying system (4), and the liquid guiding pipe (62) penetrates through the tower body (1) and is communicated with the outside.

8. The desulfurization tower of claim 7, wherein the liquid guiding groove (61) comprises a flow guiding part (611), a first connecting part (612) and a liquid accumulating part (613), the flow guiding part (611) is fixed on the inner wall of the tower body (1), the first connecting part (612) is fixedly connected with the flow guiding part (611) and the liquid accumulating part (613), and the liquid accumulating part (613) is communicated with the liquid guiding pipe (62).

9. Desulfurizing tower according to claim 8, in which the liquid trap (613) is eccentrically conical, the lowest part of the liquid trap (613) communicating with the liquid duct (62).

10. The desulfurization tower of claim 8, wherein the cross-sectional area of the flow guide portion (611) is gradually increased in the flow direction of the flue gas.